Fadi Abbas* (1) , Hiba Shams Al-Deen (1) Thamer Al-Henish (2) Manal Othman (2) and Entessar Al-Jbawi (3)
(1). Homs Agricultural Research Centre, General Commission for Scientific Agricultural Research (GCSAR), Homs, Syria.
(2). Crops Research Administration, (GCSAR), Damascus, Syria.
(3). Ministry of Agriculture and Agrarian reform, Damascus, Syria.
(*Corresponding author: Dr. Fadi Abbas, E-Mail: fadiab77@gmail.com)
Received: 26/06/2023 Accepted: 9/09/2023
Abstract:
A field experiment was conducted at Homs Agricultural Research Center, General Commission for Scientific Agricultural Research (GCSAR), Syria, during 2021 season, to study the effect of plant density on five quinoa varieties leaves and stems fresh and dry weight, leaf area, crop growth rate and net assimilation rate in the middle region of Syria. The experiment was laid out according to randomized completely block design (RCBD) in split plot arrangement with three replicates. Experimental factors included five introduced varieties (Giza-1, Titicaca, Red Carina, Q26 and NSL) and six plant densities (50×20, 50×15, 50×10, 25×20, 25×15 and 25×10 cm). The results of statistical analysis showed significant differences (P≤0.05) among studied varieties, plant densities and interaction between varieties and plant densities for all investigated traits. 100.000 plant/ha (50×20 cm) was the most suitable plant density for all investigated traits compared with higher densities, followed by 133.333 plant/ha (50×15 cm). Giza-1 and Q26 varieties were the best for all agronomical traits so it recommended to be grown in Homs region.
Key words: Growth, Dry matter, Plant density, Quinoa.
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